H&K 5 position Gas Valve by Waffen Burk – under 11″


In stock (can be backordered)

SKU: WB-MR556 SB Category:

Waffen Burk in Germany has developed and machined a replacement gas block to use the factory gas piston giving you control of the gas pressure in 5 different settings.  For use in the H&K MR556/223.  This product is for barrel lengths under 11″.